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(No Mode1-) 2 sheet-sheet 1. G. JIENCKE 8v A. MGKEE.

i v SPRING MOTOR. No. 315,946. Patented Apr. 14, 1885.

(No ModeL) 2 Sheets-Sheer, 2. G. JIENGKE n A. MQKBE.

` SPRING MOTOR. No. 315,946. Patented Apr. 14, 1885.

UNITED STATES PATENT @tiene GEORGE JIENCKE AND ALEXANDER MCKEE, 0F PHILADELPHIA, PA.

SPRING-MOTOR.

SPECIFICATION forming part of Letters Patent No. 315,946, dated April 14, 1885.

Application led February 1l, 1885. (No model.)

To all wwm t 11mg/ concern:

Be it known that we, GEORGE JIENCKE, a subject ofthe Emperor of Germany, and ALEX- ANDER Molina, a citizen of the United States, bot-h residing in Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Spring-Motors, of which the following is a description, reference being had to drawings hereto annexed.

. Our invention pertains to that class of springmotors in which there is a number oi' springs used, and in such a manner as to yield the power of one spring only, whereas the time through which this power acts is proportional to the number of springs employed, and also to the means employed for the transmission of the power of the springs, also to the winding-gear and the speed-regulating mechanism.

With reference to drawings, Figure l is a vertical section through the center line. Fig. 2 is a vertical side view. Fig. 3 is a plan showing the gearing. Fig. 4 is a detached view of one ofthe springs, illustrating at the same time the mode of fastening the springs. Figs. 5 and 6 represent detailed views of a mechanism belonging to the winding-gear. Fig. 7 is a view from the back to show the mechanism for regulating the speed. Fig. 8 shows the same mechanism, looking from the right-hand side. Figs. E), l0, 1l, and l2 are views of details belonging to the speed-regulating mechanism.

In Fig. l, A A are the top and bottom plates of the motor, which are connected by the four stays B BN B B, t-he whole forminga rigid frame for the springs and their attachments.

0'0"/0 CI" are dat spiral springs, of which C' is stationary, whereas C C CIV are capable of revolving around the vertical center stay, B".

D D" D are shields or frames to carry the movable springs C Cf C1. As shown in Fig. e, lthey have three arms or spokes, one of these arms carrying a pin, c, to receive the outside end of the spring,whereas the other two spokes have square projections b cast on to check the expansion of the springs beyond a certain limit, to prevent their rubbing against the vertical stays B, Ste., Bl", when revolving. The hubs of these shields are shaped cylindrically, and project intol the inside coil of the next spring below, offering means of attachment to the inside end of this spring. To eX- plain this arrangement more fully, we may take the case of shield D. rlhe pinareceives the outside end of spring C, whereas its hub, projecting into the inside coil of spring C', offers means of attachment to the spring C', and the two springs C and C are connected. The springs C and C and C" and C are connected .in the same manner, the shield D always connecting the outside end of one spring to the inside end of the next spring below.

r It will be observed that all springs have to be l wound in the same direct-ion.

The pin a and the projections b b may be cast solid with the shields. The shields D D D, which are capable of revolving freely on the vertical cen! ter shaft, B", aresupported by rings or collars, Fig. 1, E E E, pinned or otherwise fixed onto the center stay, B", and which tit into recesses in the hubs of the shields D D" D, in the inanner shown in Fig. l, their object being the reduction of friction. The space between the top ofthe springs and the bottom ofthe next shield above should not be greater than just to give sufficient clearance for the springs to worlr. It

will be seen that the number of springs does not affect the principle involved, and may be increased or diminished as necessity demands.

The top spring, CW, is attached to the hub of a wheel, F', which rests on the collar E. It may not be thought necessary to support each individual spring iu using a large number of them, but several of them may be supported in this manner by suitable rings, E. The bevel-wheel F gears into the two beveled pinions F F,which are arranged diametrically opposite each other, as shown in Figs. l and 3. The beveled pinion F is fast ou a movable shaft, G', said shaft G carrying also a spur-wheel, J', which is capable of revolving freely in one direction ou the shaft G', its motion in the opposite direction being prevented by an engaging mechanism shown in Figs. 5 and 6, and to be described hereinafter. Said engaging mechanism is placed in a recess on the face of the wheel J All the shaiting of roo the gearing is supported by the brackets K' K" K' on the top plate, A'. The wheel J' gears into a pinion,i, Fig. 3, onthe shaft G",on which it is fastened,eommonly with the spurwheel J",which in its turn drives a pinion, i", on the shaft G. Said shaft G carries the vWheels JW Jw JV JW, which are loose on said shaft G', and capable of turning independently of each other, and gearing into corresponding wheels, i il" il i, on the shaft GW, on which they are fixed. The shaft GW also carriesa pulley, L, which connects by means of a belt to the machine thatis to be run by the motor. shaft'G are provided with bushings, one proj ecting through the other in the mannersh'own in Fig-1. A detailed view of wheel JVI is shown in Figs. 1l and 12, which also illustrates the construction of the wheels J' JW JV JVI. Said bushings have rings fitted onto them which are provided with tooth projections c c" c' ci", as shown in Figs. 1, 11, and l2. A coupling, M, ywhich is provided with similar -tooth projections to correspond with those on the bushings of the wheelsJ', 86o., J, is arranged to slide longitudinally and without revolving on the shaft G', and can be brought into contact with either of the tooth projections o c 0' cw of said bushings, thus imparting the rotary motion of the shaft G'.to either of the wheels J', -&c., `J "1.

The construction of the coupling M is shown in Figs. 9 and l0. v

:The mechanism for operating the coupling M consistsin a two armed lever, N, Figs. -7 and 8, which embraces the .coupling M in an annular recess on said coupling, and isprovided with two rollers, O' O", to reduce the friction of the coupling M against the lever N. VSaid lever N is `mounted on a shaft, P, which is carried by the brackets KW Kl".l A

lever, R', is mounted on the same shaft '1),

which connects by means of a rod, R, to a treadle, R, Figs. y7' and 8, which may bethe treadleof a sewing-machine, if the motor is used as a sewing-motor. The leverR is provided with anotch-sector, S, as shownin Fig. 7, which forms part of av mechanism intended to. keep the coupling M in such .a position as to enable the'tooth projections ofthe ycoupling M to engage themselves with some of the tooth projections c c" c cIV on the lbushingsv of the wheels J', &c., JVI. A bell-crank lever, T T", Figs. Zand 8, which is supported by a pin on a bracket, U, screwed onto the top plate, A', and carries a little roller, V, on its double arm T', to fit into the notches 1 2 3 4 of the sector S, serves the purpose of arresting said notch sector S, and with it `the lever N 'and the coupling M, in positions'asto properly engage said vcoupling M with the tooth projections c c" c c1". The arm T" of the 'bell-crank lever T T" has a tension-spring, W', attached to it, which is suspended'from the top plate, A', of the frame, and which spring is adjusted to exert a constant pressure of The wheels J', Snc., JVI on theI shown.

ting out of its position inside of l[he ring X the roller V on the arm T', against thenotch-sector S, to offer a certain amount of resistance to the shifting of said sector S. A

spiral spring, W",is placed on the shaft P, Figs 3 and 8, which carries the weight of the rod R, connecting With the treadle R', and has also the tendency to throw the coupling M,when it is in contact with the tooth projection c of the wheel J', on the face of said wheel J, the corresponding notch, 1, in the sectorfS being cut out for this purpose, as shown in Fig. 7. Another spiral spring W, is arranged on thc shaft G",inside of the coupling M, Fig. 1. In the position shown of coupling M the spring W is loose; but as the coupling travels over to the tooth projec` c of the wheel J the bottom of said coupling will strike against the Vspring W and compress it, and its kfriction against the bush:- ing of the wheel J"I will act "as a retar'dingbrake when the coupling is in contact with the wheel J The winding mechanism 'conA sists in a bevel-pinion, F', gearing into the bevel-wheel F', and fastened onto the shaftl GV, Fig. 1, which is provided with a 'square projection to receive a winding crank or key, and of an engaging mechanism, 'as shown in detached views in Figs. 5 and 6.

As stated above, the face of the wheel J' is recessed out to receive the engaging mechau ism. The latter consists in a ring, X', with three or more tooth projections, such as shown in Figs. 5 and 6. Said ring is fast in the recess of the Wheel J'. A little frame, Z', is shaped as shown in Figs. 5 and 6, with a tooth projection to correspond with those of the ring X'.'

lInside'of the frame Z there is a little eccentric, Y', which is keyed onto the shaft G', as

The frame Z' is prevented from' getby the lbevel-wheel F.

Hav-ing thus described the detailed construe.

tion of our device,we shall now proceed to explain the functions of the various mechanisms,

and will commence by examining the actions of the springs by allowing the wheel F'. to'

=complete one revolution, it being supposed that the springs are wound up.- The springs 1G' C" C CIV will all vhave the same amount,

and when the tension of one of the springs is reduced the other springs will give upa part of their tension to add itto that of the first ytension in the spring G, and finally spring C will restore one quarter in the spring 0"; each-spring thus giving off a one-quarter of that amount of tension necessary to produce IOC) IIS

one revolution of the wheel F', and in this manner the springs will operate tilltheir tension is exhausted. A similar process in the reverse direction takes place when Winding up the springs. The tension that is imparted to the first spring will at all times distribute itself equally through the whole train of springs. The winding is done by turning the shaft Gv on which the beveled pinion F' rides by means of a crank or key which will impart motion to the wheel F' on which the spring Cw is fast. The bevel-pinion F" will run idly with the motion of the bevel F',:and the little frame Z', Fig. 6, will slide freely on the teeth of the ring X' without engaging with them, the position of the eccentric Y' being such as to enable the frame Z to pass by the teeth of the ring X'.

Fig. 6 clearly illustrates the function of this mechanism when the motor is being wound up, the arrow indicating the direction in which the shaft G', with the eccentric Y', turns. Wvhen the shaft G' turns in the opposite direction, as indicated in Fig. -that is, when the springs are running down-the eccentric Y will then wedge the frame Z' against the teeth of the ring X' and engage it with them in the manner shown, The ring X' being fast in the recess of the wheel J will cause said wheel J' to revolve with the shaft G', which derives its motion, through the bevels F" and F', from the springs. lThe rotary motion ofthe wheel J is transmitted through the pinion vl and the wheel J" on the shaft G", and the pinion t" to the shaft G'. The coupling M, turning with the shaft G', will impart its motion to one of the wheels J J1w J J "I, which inits turn will transmit motion to the shaft GI", on which the wheels i' zw iv i are mounted,com monly with the pulley L, which connects by means of a belt with the machine or appara tus that is to be run by the motor. lin order to properly describe the functions of the speedregulator#7 as we may designate the wheels J', dac., J, the coupling M, and the mechanism for shifting the latter, let it be supposed that the coupling M is in contact with the tooth projection c' on t-he wheel J with the coupling M pressed onto the face of said wheel J by the spring W" on the shaft P, in which position the spring W' on the shaft G' is compressed between the coupling M and the bushing ofthe wheel JW; then the roller V of the bell-crank' lever T T", Fig. 7, will be at the top extremity of the notch-sector S, the notch l being cut away, as explained above, and shown in Fig. 7.

rlhe combined pressure of the coupling M against the face of the wheel J and that of the spring\ against the bushing of the wheel J "I is supposed to be strong enough to produce sufficient resistance to stop the motion of the gearing. By a slight pressure of the foot on the treadle R' the coupling M will be moved back and the wheel J be relieved of its resistance and be allowed to revolve. The only resistance now to be overcome outside of the unavoidable resistance of the gearing will be that caused by the spring WW' on the shaft G against the bushing of the Wheel J 1. The more the coupling M is removed from the wheel J the less the resistance will be, and the greater the speed at which the motor runs. The spring W' is so adjusted as to be entirely relieved when the roller V of the bell-crank lever T' T" touches the partition between the notches 1 and 2 of the notch-sector S, Fig. 7. 1f it is desired to still further increase the speed, an additional pressure on the treadle R' will cause the roller V to jump from notch 1 to notch 2 and throw the coupling M from the tooth projection c of the wheel J' into contact with the toot-h projection c" of the wheel JI", which throws the latter into gear and makes the Wheel J run idly. In the same way the coupling M may be broughtinto contact with any of the wheels J J I"J" J "I and the speed be correspondingly increased or diminished as necessity demands.

What We claim as new, and desire to secure by Letters Patent, is

l. ln a spring-motor, the combination of a series of springs to a continuous train, with shields or frames, as described, a central rod provided with rings or collars to offer support to each individual spring or any number of them, the whole being supported by a rigid frame, substantially as and for the purpose described.

2. In aspring-motor, the combination, with a series of springs supported and connected with each other in the way described, of a train of gearing supported by brackets arranged as described, and mechanism for changing the speed of the gearing, consisting in a coupling, M, a cone of wheels, J' JIv Jv J, with bushings and projections c' c" c' cw, and a cone of wheels, 03"' iwi" ivi, on a shaft, GI",

and levers N and R', with a sector, S, on theV shaft P, bell-crank lever T" T", with roller V,and spring XV', substantially as and for the purpose described.

3. In aspringmotor, the combination, with a series of springs arranged and supported as described, a rigid frame and a train of gearing, of the winding mechanism consisting in the bevel-wheels Ff F" F', supported as described, and the ring X' in the recess of the wheel J', the frame Z', the eccentric Y' on the shaft G', substantially as and for the purpose described.

GEORGE J IENCKE. ,ALEX MCKEE. Witnesses:

J osnrrr S. ALLEN, EDWIN C. BOILEAU.

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